I filed my 2006 tax return last year but I seem to have lost my copy of my tax return and I can't remember what webpage I filed under. Is there any way of being able to find it?

Normally, for most of the requirements your purpose is served if you ask IRS for Transcripts instead of your tax return. You can order a transcript by calling 1-800-829-1040, or using Form 4506-T, Request for Transcript of Tax Return. There is no fee for a transcript. Transcripts have most of the information from your tax return including information from W2, 1099.